All sellers making retail sales of taxable goods or services in Nebraska are required to register with the state and collect and remit sales tax. As Nebraska is a Streamlined Sales Tax state, out-of-state businesses without a sales tax obligation are encouraged to register for sales tax purposes.
Since the kinetic energy increases with the square of the speed, an object doubling its speed has four times as much kinetic energy. For example, a car traveling twice as fast as another requires four times as much distance to stop, assuming a constant braking force.
If the kinetic energy decreases, then the change in kinetic energy is negative. Since the work done equals the change in kinetic energy, the work done by this force must be negative. There are a couple of ways to handle this: 1  Remember that work = - force x distance in this case.his force will tend to increase the object's speed. If the object's speed increases, then its kinetic energy will increase. If the kinetic energy increases, the change in kinetic energy will be positive.